Leveling-machine.



W. C. BAXTER.

LEVELING MACHINE.

. APPLICATION FILED FEB. 24, m3.

Patented Dec. 19,1916.

6 SHEETSSHEET l- BAXTER.

Patented Dec. 19, 1916.

6 SHEETS-SHEET 2.

w. 0. BAXTER.

uzvsuwe MACHINE.

APPLICATION FILED FEB. 24, I913.

1 20;8fi95. Patented Dec. 19,1916.

6 SHEETS$HEET 3.

W. C. BAXTER.

LEVELING MACHINE.

APPLICATION FILED FEB. 24, 1913.

' Patented Dec. 19,1916.

6 SHEETSSHEET 4.

@mmr

W. C. BAXTER.

LEVELING MACHINE. APPLICATION FILED FEB. 24, 1913.

Patented Dec. 19,1916.

6 SHEETS-SHEET 5- .1 Zizwafwmr W. C. BAXTER.

LEVELING MACHINE.

APPLICATION FILED FEB. 24. 1913.

Patented Dec. 19,1916.

e SHEETS-SHEET e man, or BEVERLY, arassacnusnrrs; .assrenon. re umrnnsnore wr or ran 1:: on, new ansen, a cenronarro r or newLnvnLn're-raace'n I To all whom it may concern:

Be it known that I, WmLIaM C. Ba 2.:

a citlzen. of the United States, residing at Beverly, in the county ofEssexand State of Massachusetts, have invented certain new and usefulImprovements in- Leveling-Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,"such as. will enable others skilled in the art to which it apper:

tains to make and use the same.

The present invention relates to leveling machines and more particularlyto leveling machines which are provided with a leveling' roll and acodperating shoe supporting jack relatively movable to change therelative longitudinal position of the roll and jack.

The object of, the present invention is to. provide a machine'ofthis'type having a simplified and improved construction and whichoperates with a high degree of emciency upon widely varying sizes andstyles.

of shoe soles. 7

With this object in view, the several features of the invention consistin certain novel features of construction, combinations and arrangementsof parts hereinafter described and claimed, the advantages of. whichwill be obvious to those skilled in the art from the followingdescription.

In the accompanying drawings: Figure 1' represents a front elevation ofa machine embodying the several features of the invention in theirpreferred formsaFig. 2 is a right hand side elevation of .the machineshown in Fig. 1 Fig. 3 is a top plan view of the machine shown in Fig.1; Fig. 4 is a detail illustrating a plan view partly in Fig. 8; Fi 10is a detail illustrating an elevation o the several disks positioned eccentric to one another; and Fig. 11 is a detail showing a longitudinalsection of the construction shown in Fig. 10.

The machine shown in the illustrated embodiment 'of the inventioncomprises two shoe supporting jacks, two vibrating sole of the heel.

Specification of Letters Patent. Patented Dee. 1 .9, 19116.. Applicationfiled February M, 1913. fierial fio. 750,326.

leveling rolls cooperating respectively there with, mechanism foractuatingthe acks to change the relative longitudinal position of thejacks and rolls,means for-connecting and disconnecting each jack and thejack actuating mechanism, and means for tipping the rolls to change therelative lateral inclination of each jack and itscooperating ro'llduring the leveling operation. The jacks are indicated at 1 in theposition which they assume when disconnected from the jack actuatingmecha and are journaled upon .a rock shaftjQ supported in the A arm 5 1ssupported upon the rock shaft and front ortion of'the machine frame.

is arranged to be connected with either of p the jacks to oscillatethejack in amanner weil known to those skilled in the art. The

jack actuating mecha consists generally of a cam 3 mounted'upon the camshaft 4, and operative connections between the cam and arm 5 to impartthe proper movements to whichever jack is connected to the arm.The'leveling rolls are indicated at 6 and are mounted to vibrate in rollcarriers 7 secured to sleeves rotatably supported in roll carrying beds8 which are pivotally mounted at 9 in the upper rear portion of themachine frame. 10. v The rolls are inclined laterally during theleveling operation by mechanism substantially the same as that disclosedin the patent to Winkley, No. 889,287, dated June 7, 1908. Thismechanism, as shown clearly in the patent above referred to, con

sists of means for changing the relative lateral inclination of. theroll and jack and means for-independently adjusting the lateral.inclination of the roll and a jack for operation upon any one of aplurality of difierenitportions of theshoe. The adjustment of thelateral inclination of the roll and'jack for operation upon each portionof the shoe is made without affecting the lateral inclination'of theroll and jack while a difierent portion" of the shoe is beingoperrequired to cause the roll to act in thedesired manner on any,portion of the shoe.

The jackjactuating'cam is so shaped that during the": operation of themachine theioo ated upon, and but a single adjustment is 1O part andshank to be properly leveled, after roll to traverse back and forth overthe shank of the shoe from the breast of the heel to the junction of theshank and forepart and back again to the breast of the heel and is thenmoved outwardly to .cause the leveling roll to again traverse the shankand forepart from the breast of the heel to the toe. During thesemovements of the jack the inclination of the leveling roll is changed tocause one side of both the forewhich the levelin roll is'turned upon thetoeiof the shoe an the inward and outward movements of the jack abovedescribed are repeated while the inclination of the leveling roll ischanged to properly level the opposite margin of the forepart and shank.The arm 5 has a depending arm 12 rigidly secured thereto and connectedby a link 15 is necessary to vary the movements ofthe jack, causing theroll to traverse'over the shank and forepart of the sole, and in orderto accomplish this result without substituting a new actuating cameither in whole or in part, the lever 14 is connected to the cam 3through a bell crank lever 20 carrying a cam roll 21. 'The angularposition of the. bell crank lever is automatically adjusted to vary theoscillatory movements imparted to the jack by mechanism fully disclosedin the patent to Winkley, No. 1,011,301, dated December 12, 1911 and"formingno part of the present invention.

As the leveling roll is intended to turn permanently upon the toe ofthe, shoe, the slotted arm 12 is arranged concentric with the pivotalconnection of the link 15 when the jack is held with the toe of a shoepositioned beneath the leveling roll. With this construction andarrangement the adjustment of the jack actuating mechanism for operationupon varying sizes of shoes does not interfere in any manner with theturning of the roll at the toe. Under certain circumstances, however,particularly when changing the machine from adults shoes to the smallestchildrens shoes or cacks, as they are known, the range of adjustmentfurnished by the slotted arm 12 is not sufficient, and accordingly twopivotal connec tions, indicated at 22 and 23 respectively, are providedfor the link 15. The link is normally connected to the actuating leverat 22 and the slotted arm is arranged concentric, with this pivotalconnection, but when the pivotal connection 23 is used the arm is notconcentric and if the slide block is adjusted in the arm the jack isdisplaced longitudinally in such a manner that the turning point of theroll does not take place at the toe of the shoe. In the presentinvention the roll is enabled to permanently turn at the toeirrespective of the size of the shoe operated upon by providing anadjustment for the slotted arm 12 relative to the arm 5 which enablesthe arm 12 to assume any one of a plurality of positions in which it isconcentric with the pivotal connection of the link 15 when the 'shoe ispositioned with its toe beneath, the roll. In the illustrated embodimentof the invention the curved arm 12 is adjustably connected to the jackactuating arm 5 through bolt and slot connections indicated at 26, theslots being designed to allow a sufiicient angular movement of the armto osition it concentrio with either one of t e pivotal connectionswhich is employed. I

It is often desirable to reverse the order of operations performed uponthe sole by the leveling roll, and as the movement of the jack and itsactuating mechanism is automatically stopped at the completion of theleveling operation it is desirable that the stoppingmechanism shall beoperative irrespective of the direction of movement tion .of the wormwheel with an abutment 41 secured to the shipper rod 38. In order tocause the trip member 40 to always move the shipper rod in a directionto release the clutch irrespective of the direction of rotation of theworm wheel, a member 42 is pivotally supported at 43 and is interposedbetween the trip member 40 and the abutment 41. The trip member isprovided with a depending curved end 44 which engages with a lateralstud 45 mounted upon the member 42 in such a manner that in-whateverdirection the worm wheel be rotating the member 42 will always .berocked to the right in the direction of the arrow to' release theclutch. The member 42 is normally retained in an inoperative position bya tension spring 46 connecting the member with the machine frame.

The shoe supporting jack is provided with the usual toe post 50 andheelpost 51 pivotally connected at 52 and moved toward and from oneanother to accommodate varying sizes. of shoes by a threaded adjustingmember 54:. The heel of the last is supported upon a last block 55 whichis inclined to clamp the shoe upon the jack by an actuating 1'nember.'56and suitableconnections not shown. Each leveling roll is maintained inyielding engagement with the shoe sole by a separate spring which may beadjusted to vary the pressure of the roll on the sole. To this end apressure lever is pivotally supported at one end upon the machine frameand has its free end connected to the roll carrying bed through a link61. The lever is pressed downwardly by a spring 62 sup ported in acasing 63 secured to the machine frame and interposed between anadjustable abutment 64: and the upper face of the lever 60. The force ofthe spring is conveniently varied by an adjusting member provided withan actuating handle 65 and operating in the usual manner to compress orrelieve the spring. This construction provides a simple and compact cansfor independently pressing each roll into engagement with the shoe solewhich takes up a minimum amount of space and which may be readilyadjusted to vary the pressure.

In machines of this type it is customary to vibrate the leveling rollscontinuously during the operation of the machine and this isconveniently accomplished by a countershaft 66 which is connected withthe drive shaft 36 through pulleys 67 and 68 and a connectin belt 69. Inexisting constructions the vibration of the rolls is ac vibratorymovement, the machine must be stopped and the eccentrics adjusted. Inthe present invention, a simple and compact mechanism is provided forvibrating the rolls at a higher rate of speed than the countershaftwhich may be conveniently adjusted during the operation of the machineto vary the extent of the vibratory movement imparted to the rolls. Tothis end the roll actuating mechanism com rises a driving disk, acontrolling disk, a oating disk supported between the two firstmentioned disks, mechanism for looking all of the disks against rotationrelative to one another, having provision for a transverse movement ofthe floating disk-relative to the others, and mechanism for adjustingone of the first mentioned disks transversely to the axis of rotation.In the illustrated embodiment of the invention two sets of disks areprovided, and the floating disk in each case is connected directly toits respective roll to impart a vibratory movement to the roll.

Each roll is vibrated by mechanism consisting of a driving disk 70secured to the countershaft, a controlling disk 71 supportedindependently of the countershaft, and a floatmg disk 7 3 supportedbetween the two first mentioned disks. The opposite faces of the disks 70 and 71 are provlded with grooves extending substantially atrightangles to one another and engaging with-coiiperating ribs 75 formed uponthe floating disk 73, as

shown clearly in Figs. 8 and 9. With this construction all of the disksare locked against rotation relative to one another, but movements ofthe floating disk in a plane normal to the axis of rotation arepermitted. The disk 73 is provided with a strap 76 engaging an annularrecess formed in the disk and connectedto the roll in the usual mannerthrough a slide 77, connecting rod 78, and yoke shaped head 7 9. inorder to cause a rotation of the disks to: impart a reciprocatorymovement to the roll, the disk 71 is adjusted transversely to positionit eccentric to the axis of rotation. When the controlcompound rotaryand vibratory movement.

is imparted to the disk 73 upon rotating the driving disk, which actionis illustrated clearly in Figs. 10 and 11. Each disk 71 is provided withan elongated hub 80 which is journaled in a head 81. in the preferredform of the invention illustrated, a single 'head 81 is provided inwhich both of the disks are journaled, and this head is adjustedtransversely to locate'both disks in the same relative position andimpart vibratory movements of equal extent to both rolls.

In order to allow an eccentric ovement of the disks relative to thecountershaft both the disks 71 and 73, as shown clearly in Figs 4: and11, are provided with axial bores of a diameter ample to accommodate allpossible transverse movement of the disks. As shown clearly in Fig. 4c,the head 81 consists of two U shaped arms 82 embracing between themspaced-bearing members 83 in which the hubs 80 are journaled. Thecountershaft 66 is provided with a center bearing 84 secured to themachine frame hetween the bearing members 83, and support and isprovided with an internally threaded head 88 through which the adjustingrodpasses. The adjusting rod is provided at its front end with a handwheel 89 and is retained against movement in the direction of its lengthso that upon a rotation of the rod the head 81 is adjusted transversely,

The movement of the head 81 in oppositedirections is convenientlylimited by a pair of abutments 90 adjustably connected to the rod andarranged to engage with opposite sides of the head 88. With thisconstruction a rapid vibration is imparted to the rolls by acomparatively slow rotation of the countershaft and the extent of thisvibratory movement may be readily varied within desired limits withoutthe necessity of either stopping or partially dismantling the'machine.

While it is preferred to employ the specific construction andarrangement of parts shown and described, .it will be understood thatthis construction and arrangement is not essential except so far asspecified in the claims, and may be changed or modified withoutdeparting from the broader features of the invention.

The invention having been described, what is claimed is A 1. A levelingmachine, having, in combination, a leveling device, a shoesupportingjack, a continuously rotated drive shaft, a

jack-actuating shaft, a clutch intermediate the two shafts, ashipper rodcontrolling the operation of the clutch, an abutment secured to theshipper rod, a trip member supported by the jack actuating shaft, and

an intermediate member interposed between the trip member and abutmentand arranged to be engaged by the trip member to cause engagement of theintermediate member with the abutment to move the abutment in adirection to release the clutch independently of the direction ofactuating shaft.

2. A leveling machine, having in combination, a leveling device, ashoesupporting jack, a continuously rotated drive shaft, a

rotation of thejack jack actuating shaft, a clutch intermediate the twoshafts, a shipper rod controlling the operation of the-clutch, a tripmember supported by the jack actuating shaft, and a connecting memberinterposed between the trip member and shipper rod and arranged toalways move in one directionto release the clutch independently of thedirection of v ,rotation of the jack a'ctuating shaft.

moment tinuously rotated drive shaft, a driven shaft, a clutchintermediate the two shafts, a trip dog supported by the driven shaft, ashipper rod controlling the operation of the clutch and having anabutment thereon, a plate pivoted upon the machine frame and normallydisengaged from the abutment, and a studmounted upon the plate andarranged to beengaged by the trip dog to always movethe plate in adirection to releasethe clutch independently of the direction ofrotation of the driven shaft.

5. A leveling machine, having in combination, ashoe supporting jack, aleveling roll, a roll supporting bed tulcrumed upon the machine frame, apressure lever pivoted at one end, alink connecting the free end of thelever and thebed, and a spring bearing upon the lever between its endsand arranged to press the roll into engagement with the y sole of a shoesupported upon the jack.

6, A leveling machine, having in combination, a shoe supporting jack, aleveling roll, a'roll supporting bed fulcrumed upon the machine frame, alever pivoted at one end, a link connecting the free end of the leverand the bed, a spring casing secured to the machine frame and having anadjust able abutment, and a spring interp between the abutment andthelever and ar-' ranged to press the roll into engagement with the shoesole.

7. A'leveling machine having, incombination, a leveling device, a shoesupport' jack, a curved arm connected to the jack, an

actuating lever, a link having one end pivot- H ally connected to thelever at one of a plural ity of points and its opposite end adjustahlyi.

connected tothe arm, and means permitting adjustment of the curved armrelative to the jack to position it concentric with the pivotalconnection of the link.

8. A leveling machine having, in combination, a leveling device, a shoesupporting jack, mechanism for oscillating the jack comprising anactuating lever, a curved arm connected with the jack and a linkconnected 7 at its opposite ends-to the lever. and curved arm, and meanspermitting adjustment of the arm angularly with relation to the jack toposition the arm concentric to the pivotal connection of the'linkwithout affecting the position of the jack relative to the levelingdevice.

9. A leveling maghine having, in combination, a leveling device, a shoesupporting jack, an actuating lever, a link pivotally connected to thelever at one end, a curved arm adjustably connected to the opposite endof the link, and a jack actuating arm adjustably connected to the firstmentionedarm allowing angular movement of the curved arm to position itconcentric with the pivotal connection of the link without aflecting theposition of the actuating arm.

shaft 'for imparting a plurality of recipro-- eating movements to theleveling device for each rotation of the shaft, and means for adjustingthe extent of the reciprocation imparted to the leveling device. I

11. A leveling machine having, in combination, a shoe supporting jack, aleveling device, means for changing the relative longitudinal positionof the leveling device and 130k, mechanism for imparting a vibratorymovement to the leveling device, and means for adjusting the extent ofthe vibratory movement during the operation of the machine.

'12. A. leveling machine comprising a pair of leveling rolls, mechanismfor vibrating each roll comprising a driving disk, a controlling diskand a floating disk supported between the two first mentioned disks, ahead supporting both of the controlling disks, and control meansextending into a position conveniently accessible to the operator foradjusting the head transversely to vary the extentof the vibratorymovement.

, WILLIAM C. BTER.

Witnesses:

RUTH E. WARD, Gms'rm E. Rooms.

